IT -GK
Here are some important Computer & Technology General Knowledge (GK) questions for competitive exams:
Basic Computer Knowledge
1. Who is known as the father of computers?
Charles Babbage
2. What is the full form of CPU?
Central Processing Unit
3. Which part of the computer is called the "brain"?
CPU
4. What is the primary function of RAM?
Temporary storage for running programs and processes
5. What is the full form of ROM?
Read-Only Memory
6. What does GUI stand for?
Graphical User Interface
7. What is the full form of USB?
Universal Serial Bus
8. Which device is used to input handwritten text into a computer?
Graphics Tablet / Stylus
Internet & Networking
9. What does HTTP stand for?
HyperText Transfer Protocol
10. What is the full form of IP in networking?
Internet Protocol
11. What is the purpose of a firewall?
To protect a network from unauthorized access
12. Which protocol is used to send emails?
SMTP (Simple Mail Transfer Protocol)
13. What is the full form of VPN?
Virtual Private Network
14. What is the function of a router?
Directs data packets between computer networks
15. What does URL stand for?
Uniform Resource Locator
Software & Programming
16. What is the full form of OS in computing?
Operating System
17. What is the main function of an Operating System?
Manages hardware and software resources
18. Which language is considered the mother of all programming languages?
C Language
19. What does HTML stand for?
HyperText Markup Language
20. Which programming language is primarily used for web development?
JavaScript
21. What is the purpose of SQL?
To manage and query databases
Modern Technology & Innovation
22. Who is the founder of Microsoft?
Bill Gates & Paul Allen
23. Which company developed the Android operating system?
24. What is the full form of AI?
Artificial Intelligence
25. What does IoT stand for?
Internet of Things
26. What is cryptocurrency based on?
Blockchain technology
27. Which technology is used in fingerprint and facial recognition?
Biometrics
28. Which company is known for developing ChatGPT?
Open AI
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Hardware & Storage
1. Which unit is used to measure the speed of a CPU?
Gigahertz (GHz)
2. What does SSD stand for?
Solid State Drive
3. What is the smallest unit of data in a computer?
Bit
4. Which type of memory is volatile?
RAM (Random Access Memory)
5. Which type of storage device has no moving parts and provides faster performance?
SSD (Solid State Drive)
6. Which component is responsible for graphics processing?
GPU (Graphics Processing Unit)
7. Which type of printer uses toner and laser technology?
Laser Printer
8. What is the full form of BIOS?
Basic Input Output System
9. Which company developed the first microprocessor?
Intel
10. What is the primary function of a motherboard?
Connects all hardware components
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Internet, Networking & Security
11. Which layer of the OSI model is responsible for routing?
Network Layer
12. What is the purpose of DNS (Domain Name System)?
Converts domain names into IP addresses
13. What does HTTPS stand for?
HyperText Transfer Protocol Secure
14. What is the standard IP address format (IPv4)?
32-bit (e.g., 192.168.1.1)
15. What is the default gateway in networking?
The device that connects a local network to the internet
16. Which protocol is used for secure file transfer over the internet?
SFTP (Secure File Transfer Protocol)
17. What is phishing in cybersecurity?
A type of cyberattack where users are tricked into providing sensitive information
18. What is two-factor authentication (2FA)?
A security process that requires two forms of verification before access is granted
19. What does MAC address stand for?
Media Access Control Address
20. Which type of malware locks files and demands a ransom?
Ransomware
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Programming & Software Development
21. Which programming language is mainly used for Android app development?
Java & Kotlin
22. What does IDE stand for in programming?
Integrated Development Environment
23. Which database management system is widely used for websites?
MySQL
24. What is an API in software development?
Application Programming Interface
25. Which programming language is used for artificial intelligence and machine learning?
Python
26. What is the full form of JSON?
JavaScript Object Notation
27. Which language is used to style web pages?
CSS (Cascading Style Sheets)
28. Which type of software is Linux?
Operating System
29. What is an open-source software?
Software whose source code is freely available for modification and distribution
30. Which company developed Java?
Sun Microsystems
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Emerging Technologies & Innovations
31. What does AR stand for in technology?
Augmented Reality
32. Which technology enables smart assistants like Alexa and Siri?
Artificial Intelligence (AI) & Natural Language Processing (NLP)
33. What is the function of a blockchain?
Secure and decentralized digital record-keeping
34. Which type of AI is designed to perform specific tasks, such as facial recognition?
Narrow AI
35. What does 5G stand for?
Fifth Generation (of mobile networks)
36. Which company manufactures the iPhone?
Apple
37. What is cloud computing?
Storing and accessing data over the internet instead of a local computer
38. What is the full form of NFT in digital assets?
Non-Fungible Token
39. Which car company is famous for its self-driving technology?
Tesla
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Basic Computer Terms
1. CPU – Central Processing Unit
2. RAM – Random Access Memory
3. ROM – Read-Only Memory
4. BIOS – Basic Input Output System
5. OS – Operating System
6. GUI – Graphical User Interface
7. USB – Universal Serial Bus
8. HDD – Hard Disk Drive
9. SSD – Solid State Drive
10. PSU – Power Supply Unit
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Networking & Internet
11. IP – Internet Protocol
12. TCP/IP – Transmission Control Protocol/Internet Protocol
13. DNS – Domain Name System
14. HTTP – HyperText Transfer Protocol
15. HTTPS – HyperText Transfer Protocol Secure
16. FTP – File Transfer Protocol
17. VPN – Virtual Private Network
18. LAN – Local Area Network
19. WAN – Wide Area Network
20. MAC – Media Access Control
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Programming & Software
21. HTML – HyperText Markup Language
22. CSS – Cascading Style Sheets
23. SQL – Structured Query Language
24. API – Application Programming Interface
25. IDE – Integrated Development Environment
26. JSON – JavaScript Object Notation
27. XML – Extensible Markup Language
28. PHP – Hypertext Preprocessor
29. ASP – Active Server Pages
30. AJAX – Asynchronous JavaScript and XML
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Cybersecurity & Encryption
31. SSL – Secure Sockets Layer
32. TLS – Transport Layer Security
33. DDoS – Distributed Denial of Service
34. AES – Advanced Encryption Standard
35. PGP – Pretty Good Privacy
36. IPSec – Internet Protocol Security
37. OTP – One-Time Password
38. 2FA – Two-Factor Authentication
39. Firewall – Security system to prevent unauthorized access
40. KB= Kilobyte, MB= Megabyte
GB= Gigabyte, TB= Terabyte
1KB= 1024 byte
1 byte= 8 bits
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Emerging Technologies
41. AI – Artificial Intelligence
42. ML – Machine Learning
43. IoT – Internet of Things
44. VR – Virtual Reality
45. AR – Augmented Reality
46. 5G – Fifth Generation (Mobile Network)
47. NFT – Non-Fungible Token
48. RPA – Robotic Process Automation
49. Cloud Computing – Storing and processing data over the internet
50. Blockchain – Secure digital ledger technology
Primary Storage (Memory)
1. RAM – Random Access Memory
2. ROM – Read-Only Memory
3. DRAM – Dynamic Random Access Memory
4. SRAM – Static Random Access Memory
5. VRAM – Video Random Access Memory
6. NVRAM – Non-Volatile Random Access Memory
7. EEPROM – Electrically Erasable Programmable Read-Only Memory
8. PROM – Programmable Read-Only Memory
9. EPROM – Erasable Programmable Read-Only Memory
10. Cache Memory – High-speed memory for quick access by the CPU
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Secondary Storage (Hard Drives & SSDs)
11. HDD – Hard Disk Drive
12. SSD – Solid State Drive
13. NVMe – Non-Volatile Memory Express
14. eMMC – Embedded MultiMediaCard
15. UFS – Universal Flash Storage
16. SATA – Serial Advanced Technology Attachment
17. PATA – Parallel Advanced Technology Attachment
18. SCSI – Small Computer System Interface
19. RAID – Redundant Array of Independent Disks
20. M.2 SSD – Small form factor SSD using NVMe/SATA
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External & Portable Storage
21. USB – Universal Serial Bus
22. CD – Compact Disc
23. DVD – Digital Versatile Disc
24. BD – Blu-ray Disc
25. FDD – Floppy Disk Drive
26. CF – Compact Flash
27. SD – Secure Digital (SD Card)
28. MicroSD – Micro Secure Digital
29. xD-Picture Card – Extreme Digital Picture Card
30. OTG – On-The-Go (USB Storage for mobile devices)
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Cloud & Network Storage
31. NAS – Network Attached Storage
32. SAN – Storage Area Network
33. DAS – Direct Attached Storage
34. S3 – Simple Storage Service (Amazon Cloud Storage)
35. iSCSI – Internet Small Computer System Interface
36. ZFS – Zettabyte File System
37. Btrfs – B-Tree File System
38. EXT – Extended File System (EXT2, EXT3, EXT4 in Linux)
39. NTFS – New Technology File System (Windows File System)
40. FAT – File Allocation Table (FAT16, FAT32, exFAT)
Here are some important IT-based General Knowledge (GK) questions for competitive exams:
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Basic IT & Computer Fundamentals
1. ASCII= American Standard Code for Information Interchange
2. What is the full form of IT?
Information Technology
3. What does CPU stand for?
Central Processing Unit
4. What is the primary function of an operating system?
It manages hardware and software resources
5. Which part of the computer is responsible for processing data?
CPU
6. What does GUI stand for?
Graphical User Interface
7. What is the full form of RAM?
Random Access Memory
8. What is the function of a hard disk?
Permanent data storage
9. Which company developed the Windows operating system?
Microsoft
10. What is the full form of USB?
Universal Serial Bus
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Internet & Networking
11. What is the full form of IP?
Internet Protocol
12. What does HTTP stand for?
HyperText Transfer Protocol
13. Which device is used to connect multiple networks?
Router
14. What is the purpose of DNS?
Converts domain names into IP addresses
15. What is the full form of VPN?
Virtual Private Network
16. Which protocol is used for secure website communication?
HTTPS (HyperText Transfer Protocol Secure)
17. What does LAN stand for?
Local Area Network
18. Which device forwards data between different networks?
Router
19. What is the default port number for HTTP?
80
20. What is the maximum length of an IPv4 address?
32 bits
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Software & Programming
21. What is the full form of SQL?
Structured Query Language
22. Which programming language is mainly used for web development?
JavaScript
23. What does API stand for?
Application Programming Interface
24. Which language is used for artificial intelligence and machine learning?
Python
25. What is the full form of IDE?
Integrated Development Environment
26. Which database management system is widely used for websites?
MySQL
27. What is the full form of XML?
Extensible Markup Language
28. Which operating system is open-source and widely used for servers?
Linux
29. What is the full form of PHP?
Hypertext Preprocessor
30. Which software is used to browse the internet?
Web Browser
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Cybersecurity & Encryption
31. What is the full form of SSL?
Secure Sockets Layer
32. Which type of attack tricks users into revealing personal information?
Phishing
33. What is the purpose of a firewall?
To protect a network from unauthorized access
34. What does OTP stand for?
One-Time Password
35. What is the full form of DDoS?
Distributed Denial of Service
36. What is two-factor authentication (2FA)?
A security measure that requires two forms of verification
37. Which type of malware locks files and demands a ransom?
Ransomware
38. What does AES stand for in encryption?
Advanced Encryption Standard
39. What is the full form of PGP?
Pretty Good Privacy
40. What does MAC address stand for?
Media Access Control Address
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Emerging Technologies & Innovations
41. What does AI stand for?
Artificial Intelligence
42. What is the full form of IoT?
Internet of Things
43. Which company developed ChatGPT?
OpenAI
44. What does VR stand for?
Virtual Reality
45. What does AR stand for?
Augmented Reality
46. Which company developed the Android operating system?
47. What is the full form of NFT?
Non-Fungible Token
48. What is blockchain technology used for?
Secure and decentralized digital record-keeping
49. Which car company is known for self-driving technology?
Tesla
50. What is the function of cloud computing?
Storing and processing data over the internet
Happy learning with Noor E Alam
English Medium Teacher
University of Dhaka
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